Supports skip by folder
To skip to the next folder, press FF button shortly, and within 2 seconds, press and hold FF button.
(you will hear water drop sound)
To skip to the previous folder, press REW button shortly, and within 2 seconds, press and hold REW button.
(you will hear water drop sound)
- Move to the first song if there is no folder.
- Move to the first part of the song if there is only one song.
- Skip by folder feature is not supported in shuffle mode.

Fixed the error that system gets down when play FLAC files that contain huge Mata data